Expression of ACE2 in Human Neurons Supports the Neuro-Invasive Potential of COVID-19 Virus

Cell Mol Neurobiol. 2022 Jan;42(1):305-309. doi: 10.1007/s10571-020-00915-1. Epub 2020 Jul 4.

Abstract

The recent outbreak of 2019 coronavirus disease (COVID-19), caused by a novel coronavirus, has now spread quickly worldwide. Like the severe acute respiratory syndrome coronavirus (SARS-CoV), this novel type of coronavirus, SARS-CoV-2, has been demonstrated to utilize angiotensin-converting enzyme 2 (ACE2) as an entry point to the cells. There is a growing body of reports indicating that COVID-19 patients, especially those in severe condition, exhibit neurological symptoms, thus supporting the possibility that SARS-CoV-2 could infect and damage neurons within the central nervous system in humans. Using human pluripotent stem cells-derived neurons, here we show the expression of ACE2 in human neurons via immunocytochemistry. From this perspective, we elaborate on the idea that the neuro-invasive potential of SARS-CoV-2 should be considered as a possible contributory factor, as well as a therapeutic target, for the severe respiratory symptoms in critical COVID-19 cases.

Keywords: ACE2; COVID-19; Central nervous system; Neurons; SARS-CoV-2.

MeSH terms

  • Angiotensin-Converting Enzyme 2 / metabolism*
  • COVID-19 / enzymology*
  • COVID-19 / virology*
  • Humans
  • Models, Biological
  • Neurons / enzymology*
  • Neurons / pathology*
  • Organ Specificity
  • Pluripotent Stem Cells / metabolism
  • SARS-CoV-2 / physiology*

Substances

  • ACE2 protein, human
  • Angiotensin-Converting Enzyme 2